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Definitions for: Cyclone
[n] a violent rotating windstorm
[n] (meteorology) rapid inward circulation of air masses about a low-pressure center; circling counterclockwise in the northern hemisphere and clockwise in the southern
Webster (1913) Definition: Cy"clone (s?"kl?n), n. [Gr.????? moving in a circle,
p. pr. of ?????, fr. ky`klos circle.] (Meteor.)
A violent storm, often of vast extent, characterized by high
winds rotating about a calm center of low atmospheric
pressure. This center moves onward, often with a velocity of
twenty or thirty miles an hour.
Note: The atmospheric disturbance usually accompanying a
cyclone, marked by an onward moving area of high
pressure, is called an anticyclone.
Cy"clone, n.
1. (Meteor.) In general, a condition of the atmosphere
characterized by a central area of pressure much lower
than that of surrounding areas, and a system of winds
blowing inward and around (clockwise in the southern
hemisphere and counter-clockwise in the northern); --
called also a low-area storm. It is attended by high
temperature, moist air, abundant precipitation, and
clouded sky. The term includes the hurricane, typhoon, and
tropical storms; it should not be applied to the moderate
disturbances attending ordinary areas of low pressure nor
to tornadoes, waterspouts, or ``twisters,'' in which the
vertical motion is more important than the horizontal.
2. A tornado. See above, and Tornado. [Middle U. S.]
Antonyms: anticyclone
See Also: atmosphere, atmospheric state, depression, hurricane, low, low pressure, tornado, twister, typhoon, windstorm
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